| Calculator, Predicted Values, Pulmonary Function | Federal registry | 1 |
| Calculator, Pulmonary Function Data | Federal registry | 1 |
| Calibrator, Pressure, Gas | Federal registry | 1 |
| Calibrator, Volume, Gas | Federal registry | 1 |
| Caliper | Federal registry | 1 |
| Caliper, Ophthalmic | Federal registry | 1 |
| Camera, Cine, Endoscopic, With Audio | Federal registry | 1 |
| Camera, Cine, Surgical, With Audio | Federal registry | 1 |
| Camera, Still, Endoscopic | Federal registry | 1 |
| Camera, Surgical And Accessories | Federal registry | 1 |
| Camera, Television, Surgical, With Audio | Federal registry | 1 |
| Cannula, Ear | Federal registry | 1 |
| Cannulae, Bronchial | Federal registry | 1 |
| Cannula, Injection | Federal registry | 1 |
| Cannula, Ophthalmic | Federal registry | 1 |
| Cannula, Sinus | Federal registry | 1 |
| Cannula, Surgical, General & Plastic Surgery | Federal registry | 1 |
| Cannula, Ventricular | Federal registry | 1 |
| Cap, Surgical | Federal registry | 1 |
| Cardiac Catheterization Kit | Federal registry | 1 |
| Cardiopulmonary Resuscitation Aid Kit | Federal registry | 1 |
| Carrier, Amalgam, Operative | Federal registry | 1 |
| Carrier, Ligature | Federal registry | 1 |
| Carver, Dental Amalgam, Operative | Federal registry | 1 |
| Carver, Wax, Dental | Federal registry | 1 |
| Cassette, Radiographic Film | Federal registry | 1 |
| Catheter, Balloon Type | Federal registry | 1 |
| Catheter, Drainage, Intraoral/Extraoral | Federal registry | 1 |
| Catheter, Eustachian, General & Plastic Surgery | Federal registry | 1 |
| Catheter (Gastric, Colonic, Etc.), Irrigation And Aspiration | Federal registry | 1 |
| Catheter, Intravascular, Therapeutic, Short-Term Less Than 30 Days | Federal registry | 1 |
| Catheter, Multiple Lumen | Federal registry | 1 |
| Catheter, Oximeter, Fiber-Optic | Federal registry | 1 |
| Catheter, Peritoneal | Federal registry | 1 |
| Catheter, Retention Type, Balloon | Federal registry | 1 |
| Central Venous Catheter Tray | Federal registry | 1 |
| Centrifuges (Micro, Ultra, Refrigerated) For Clinical Use | Federal registry | 1 |
| Cerclage, Fixation | Federal registry | 1 |
| Chair And Table, Medical | Federal registry | 1 |
| Chair, Blood Donor | Federal registry | 1 |
| Chair, Examination And Treatment | Federal registry | 1 |
| Chair, Surgical, Ac-Powered | Federal registry | 1 |
| Chair, Surgical, Non-Electrical | Federal registry | 1 |
| Chair, With Casters | Federal registry | 1 |
| Chamber, Oxygen, Topical, Extremity | Federal registry | 1 |
| Chart, Visual Acuity | Federal registry | 1 |
| Chisel, Bone, Surgical | Federal registry | 1 |
| Chisel, Mastoid | Federal registry | 1 |
| Chisel, Middle-Ear | Federal registry | 1 |
| Chisel, Nasal | Federal registry | 1 |
